libpayload/drivers/video: Add cursor movement support in console

Add support for moving the console cursor horizontally and vertically.

BUG=b:300405745
TEST=Tested using firmware shell on Rex.

Signed-off-by: Eran Mitrani <mitrani@google.com>
Change-Id: I585add120b559396bc0e28aa972b0ae2a33f1fa8
Reviewed-on: https://review.coreboot.org/c/coreboot/+/77900
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>

payloads/libpayload/drivers/video/video.c

@@ -122,6 +122,13 @@ void video_console_putc(u8 row, u8 col, unsigned int ch)
 		console->putc(row, col, ch);
 }
 
+void video_console_move_cursor(int x, int y)
+{
+	cursorx += x;
+	cursory += y;
+	video_console_fixup_cursor();
+}
+
 void video_console_putchar(unsigned int ch)
 {
 	if (!console)